Special stitch forming machine



`fune 21, 1960 Filed March 15, 1956 C. W. JOHNSON SPECIALSTITCH FORMING MACHINE 7 Sheets-Sheet 1 OARL W. JOHNSON ATTORNEY June Z1, A1960 c. w. JOHNSON SPECIAL. STITCH FORMING MACHINE 7 Sheets-Sheet 2 FlGya INVENTOR CARL W. JOHNSON BY mam 'YW ATTORNEY June 21, 1960 c. w. JoHNsoN 2,941,485

SPECIAL STITCH FORMING MCIINE Filed March 15, 1956 7 Sheets-Sheet 3 FIG. 3

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j; /f 164 160 /52 164/ We U4 f/J4 f6@ i019 Lin' "-145 w 15a E c@ E /00 25d 370 INVENTOR CARL W. JOHNSON I f2@ K v OO yATN'DRNY June 21, 1960 c. w. JOHNSON SPECIAL STITCH FORMIYNG MACHINE Filed March l5, 1956 7 Sheets-Sheet 4 ATTOR EY June 2l, 1960 c. w. JOHNSON SPECIAL STITCH FORMING MACHINE 9mm 4 www @QN QQN W 5 @WQ n lll! T wm @uw www f mm .m hm. %%\w w. .t n llll Il f l m O. @E l S 1 l 1| w wm. 7` C Filed March 15, 1956 ATTO NEY June 2l, 1960 c. w. JOHNSON SPECIAL STITCH FORMING MACHINE '7 Sheets-Sheet 6 Filed March 15, 1956 NNW,

June 21, 1960 c. w. JoHNsoN 2,941,485

SPECIAL STITCH FORMING MACHINE Filed March 15, 1956 7 Sheets-Sheet 7 FIG.16 FIG.17 F|G.18

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TTO NEY 2,941,485 SPECIAL STITCH FORMING MACHINE Carl W. Johnson, Brooklyn, N.Y., assignor tovAmerlcan Machine & Foundry Company, a corporation of New Jersey Filed Mar. 15, 1956, Ser. No. 571,731

44 Claims. (Cl. 112-98) This invention relates to the art of sewing, and more particularly to improvements relating to sewing machines and sewing methods for forming various types and combination of types of stitches closely simulating hand stitching.

The invention further relates to the novel method of and apparatus for forming selected combinations of straight stitches and lateral stitches and combinations of such stitches wherein all or none of the lateral stitches may extend over the edge of the work or only a part of the lateral stitches may extend thereover. Material stitched in accordance with the invention so closely resembles hand sewing that it is diicult even to an expert to tell whether the work has been stitched by a skilled seamstress or tailor. It is believed that nished work so closely approximates hand sewing because as in hand sewing a single thread is pressed back and forth through the work and disposed therein in a manner approximating hand sewing.

The term lateral stitch as used herein, means a stitch that is positioned at an angle to the direction of feed of the work or of the line of stitches in the work, or at substantially right angles thereto.

y A preferred form of Iapparatus for accomplishing the results of the invention comprises a sewing machine using a double pointed needle having an eye locatedbetween the points through which the length of thread may pass. The needle is moved by opposed alternately operating needle bars back and forth relative to a work? support table and projected through the work with the thread which has -a loose and a ixed end in timed relation to the operation of the work feeding and holding means. On alternate operations of the needle bars whileaportion of the thread is held above the work by a tension device, a loop of thread formed beneath the work support table is engaged by the thread engaging head of a rotary thread puller. The thread puller pulls the loose end of the thread through the work and disposes it on a thread receiving and supporting drum. Y

In forming certain types of lateral stitches, over edge and combinations of such stitches, selected spaced portions of the edge of the work may be moved out of the path of travel of the needle, or if desired, thelateral stitches may be disposed wholly within the work. The work is disposed in proper position for stitch formation by means of upper and lower work feed members which grip it and locate it in the path of' ltravel Aof the needle. The work feed members are moved laterally or forwardly or given combined movements in effecting the type or types of the stitch desired. A machine constructed in accordance with the invention also -is provided atento with selective mechanism which makes it possible to i adapt it rapidly for forming conventional straight slip stitches, or for making a plurality of different types of lateral stitches or combinations thereof.

It is an object of the invention to provide a novel apparatus and method ot forming selected types of stitches 2,941,485 Patented Jurre 21, 1960 ICC a specified cam may be selected in order to form a pre determined type of stitch, or a plurality of cams may be selected in forming other predetermined types of stitches, or wherein the cam means may be incapacitated and the machine can then be operated to form conventional types of over and under stitches.

The invention is further characterized by a novel method for 'forming selected types of stitches, or combination stitches in which the work being stitched is moved laterally, forwardly or backwardly with relation to a double pointed needle which is employed for disposing the thread inside or outside of the work in accordance with a predetermined pattern of stitching.

The invention is also characterized by the provision of novel mechanism lfor and the method of forming a plurality of types of slip stitches including a succession of lateral stitches which may be disposed within the limits of the work, or over the edge of the work and a succession of combination stitches. The machine is also pro-` effect can be obtained as wellfas a succession of stitches having great utility. v v l v It is a further object of the invention to provide'an improved length adjusting mechanism which furnishes a visual and actual indication of the length of stitch to be made.

The invention further consists in the provision of novel mechanism including a plurality of cams and adjustable means actuated thereby for producing a'large number of highly decorative and pleasing as well as utilitarian stitches in work which is stitched. In accordance with the invention, -a selected cam or a plurality of cams may be operated at one time in forming the desired type of stitch required.

With these and other objects Inot specifically mentioned in view, the invention consists in certain combinations and constructions which will be hereinafter fully described, and then set forth in the claims hereunto appended.

In the accompanying drawings which yform a par-t of this specification, and in which like characters of reference indicate the same or like parts:

Fig. 1 is a partial sectional end elevati-on of a preferred embodiment of sewing machine embodying the invention.

Fig. 2 is a sectional front elevation of the machine, taken on line 2--2 of Fig. 1.

Fig. 3 is a rear view illustrating the material feed and displacement mechanism.

Fig. 4 is a view taken on line 4 4 of Fig. 3.

Fig. 5 is a plan view of the controls for the material feed and displacement mechanism.

Fig. 6 is a detailed plan view of the lower material feed foot, taken on line `6--6 of Fig. 11.

Fig. 7 is a side elevation illustrating the material feed and displacement mechanism while engaging the material Fig. 9 is an end elevation taken on line 9-9 of Fig. 7 showing the dual presser `foot in elevated position during `feeding of the material.

Fig, 10 is a bottom view of the upper feed foot and dual presser foot, taken online 10--10of Fig. 7.

Pig. 1l is an end elevation, taken on line 11-'-1 1 of Fig. 7 illustrating the upper feed foot and dual presser foot.

Fig. l2 is an end elevation of the upper and lower'fe'ed foot in conjunction with the dual Ypresser' foot during material displacement action.

Fig. 1 3 is an enlarged partial end elevation illustrating the upper feed and dual presser feet after displacing the material and prior to the 'upward movement of the needle.

Fig. 14 is a sectional plan view of the upper feedfoot and presser foot mechanism, taken on line 14--14 of Fig. 7.

Fig.. 15 isasectional plan view of the dual presserfoot, taken on line 15-15 of Fig. 9.

Figs. 16, 17, and 18'illustrate the coniguration of each of the three vertical cams employed for the purpose of. selecting various combinations of 'stitch lengths. Fig. 19 is a sectional end elevation illustrating thea'ssembly of vertical cams and the horizontal cams provided to effect various timed lateral displacement of the material and thus produce various selected combinations'of ornamental stitches.

Fig. 20 is an end elevation of the horizontal cams, taken online 20-20 of Fig. 19.

Fig. `21 lillustrates a few of the severalornamental stitches Which can be produced through the selection of the various stitch length control cams in combination. with the various material displacement cams.

Eig. 22 is aplan view of a preferred form of throat late. P Fig. 23 is a plan view of the material guide showing'its relation to the upper presser foot. With reference to thedrawings, stitch forming mechanisms embodying the invention are shown in conjunction with an under and over stitch sewing machine, n such as illustrated and described i'n Patent No. 2,386,800, granted to C {W. Johnson on October 16, `1945.

It'will'be understood by those skilled in the'art that in the type of machine disclosed anddescribed herein, needle N is grasped alternately by the jaws of e'ach needle bar as the needle is pushed vertically downward or upward'orjbaek and forth through the work or ln :taterial being'sewed. VIn the operationeofthe machine,;oneend ofthethread isjheld fixed and the otherI end is loose. This loose end of the thread is pulled* through-the work ori-each alternate' movement ofthe needle bars by a'l threadl puller described hereinafter.

'The machine is driven by a belt 30 running on pulley 32 secured to hub Se of gear 36 rotatably supported by'stu'd shaft 38 mounted on the wall offrame 40 by lmeans of suitable screws 42. Belt 30 is driven by a suitable pulley (not. shown) which is integral with a suitable clutch mechanism driven from a motor (not shown) in a manner similar to that disclosed in Johnson Patent No. 2,368,066, issued January 23, 1945. Since the drive, as well'as the mechanism for operating the clutch `and brake of the sewing machine,form no part of the pres'ent'rinvention, further showing and description thereof are deemed unnecessary and are omitted. A hand whee1'44 attached to pulley 32 is 'provided in order to permit manual" turning of the machine.

Formed integrally with pulley 32isfa cam'46 having a "cam'track 48 in which run cam rollers 50 and 52 positioned at diagrammatically'oppositepoints-of cam.' 46. Cam roller 50 is 'pivotally supported on the 'free end` of cam lever S4 projectingn from the rearwardV endpoffan elongated hub'or sleeve 56 pivotally'mountedon horizontal' shaft 58 held at one vend by'a suitable bearing bracket 60 and at the other end by` a bearing lug of bridge housing' 62. Camroller 52 is pivotallymounted on 'thefree e'nd of cam-lever '645 projectingv fromethe rearwarcfend of elongated hub or sleeve 66 loosely supported on a suitably mounted horizontalshaft 68 (Fig. 2). v

The machine is provided with an upper needle bar 70 and a lower needle bar 72 arranged in opposed axial alignment. Each needle bar is operatively connected to an actuating member 74 and 76, respectively. Actuating v member 74 of upper needle bar 70 is pivotally connected to actuating arm 78 projecting :from the forward end of hub or.` sleeve 56. `ztctuatiu'g member' 76 ofthe lower needle bar 72 is pivotally connected to the freeend of actuating arm 80 projecting from the forward end of vhub or sleeve 66.

Upper needle bar 70 is guided by means of a'p'a'ir of vertical bushings 82'('Fig. 1.5)'1supported by a pair of suitable lugs 84 projectingfrom the forward end of bridge housing 62. Lower 'needle Ybar 72 is also guided by means of a pair of suitably supported vertically spaced axial aligned bushings 86 (Fig. 1). Since the actuating members 74 and 7 6, respectively-, of the upper and lower needle bars are'of the sliding bleek type, oscillating motion imparted to actuating arms78-and 80and sleeve members 56 and 66 by means of cam 48 through cam levers S4 and 64, respectively, is converted into vertical reciprocating ymotion of needle bars 70 and 72.

Needle N, which is projected by rkneedle bars 70 and 7 2 back and forth through the work, is a double pointed needle having ya point at each endand an eye located preferably about midway between the ends thereof through which the 'threadpasses Since bothneedle bars 70 and 72 are constructed in thesame manner'as the needle bars shown and vdescribed in Johnson Patent 2,386,800, and their. Yconstruction .forms no specific part of the'p're'sent invention, KAfurther detailed disclosure 'and description thereofiare deemed unnecessary and are -therefore omitted.

Themachine selected for purposes of illustration is provided with'adual upper presser foot designated generially''which'c'oacts 'with another upper feed foot 90,

and a lower feed foot 92 which operate to engage, displace and e'ed'aswell as retain the work or material'beingA sewed in,A proper position onwork support table or 'plate 110'. The actuating mechanism for effecting the vertical up and down motions of presser foot-88 and upper feedfoot 900i sewing headY H is generally thesame in construetionfa'nd operation' asr that shown'and described in Patent 2,386,800 'and therefore a detailed description is 'deemed unnecessary to -an understanding of the invention.

I n order-to facilitate theformationofanew series-'of 'stitches inwork M, and alsojto'enable an operator'toin- Y spect"tlievlork'at'any timey during theoperationof lthe machine, Apresser foot 88 and-upper feedfoot are-so 'cnstructedand arranged that-they may be lifted upwardlywlienever theopeatordesires. vThis operation is aclcomt'ilished'byin'eans of a knee actuated treadleor plate mechanism l(riot-shown) similar-tothat shown in the above referred 4to PatentV 2,3 86,800. "Lower feed footl 92 is similar in construction and operation7`totha`tf`disclos`ed and described inlatent 2,368,066 as far as its reciprcatory movement is concerned. 4In 'ac'cordancevwith' the invention, however, feed foot 92 is Iso constructed' that it may be moved laterally, as well as longitudinally' up anddown. "In this way, the worlt'is giveneithera'straight forward feedingmovement over ywork table 110, or a lateral movement thereon, or a cmbined lateral'and longitudinal movement. By' virtue of thesefsevealimovements, a large numberof desired types ofA highly decorating` and pleasing,l as well as utilitarian stitches,` can be made.

`Referring to Figures 5,l 6,7l andfS, Iit will be seen that lower Afeed' foot 92' y'is-attached to a carrier bar 94 having `rigidlyattached -to,-as by-welding 'or other suitable means, a' l'rod' 96 slidablymounted inabore -97- foi-medina laterally. projecting'hub 9S of an arm 100. The-extremeright end of arm 100,` as viewed lin Fig. 1, is-pivotally attached toiA a stud Y 102v4 carried by a lug" 104 loosely mounted? on 3 tud shaft 106 suitably supported in the frame of the machine.

Lower feed foot 92 is provided with a corrugated or toothed work engaging and feeding surface 93 adapted to engage, and advance the work to and from the path of travel of needle N. Feeding surface 93 may be of Aany conventional type known in the art. Lower presser foot 92 is moved in a closed path of travel upwardly through a slot 107 in a throat plate 108 mounted in work table 110 with its upper surface lying in the plane of table 110. As illustrated, throat plate 108 is mounted for lateral movement relative to the straight line movement of work M to and from the path of travel of needle N. r

As each stitch is completed, lower feed foot carrying arm 100, by means of the operating connections described hereinbelow, descends slightly below the level of throat plate 108 thereby disengaging surface 93 from work M,

after which it returns along its prescribed closed path of travel to its starting position at the right of the path of travel of needle N, as viewed in Fig. l. In the continued operation of the machine, arm 100 moves upwardly, engaging surface 93 with the under surface of work M which is then advanced by lower feed foot 92 into position awaiting the next movement of needle N therethrough. The work or material M remains in this position during each sewing operation of the needle while lower feed foot 92 returns to its starting position.

Upward and downward movement of lower feed foot 92 on arm 100 is effected by means of cam 112 which is tracked by cam follower 114 on one arm 116 of a bell crank cam lever loosely mounted on a horizontal shaft 118 (Figs. l and 2). The other arm 120 of this bell crank lever is pivotally connected to one end of a connecting rod 122. The other end of rod 122 is pivotally attached to the left end of arm 100, as viewed in Fig. l.

Cam 112 is mounted on and rotated continuously by shaft 124 suitably supported in suitable bearings in the frame of the machine. Shaft 124 is driven by a gear 126 attached thereto and meshing with gear 128 mounted on shaft 130. A gear 132, preferably formed integrally with gear 128, meshes with gear 134 which in turn meshes with and is driven by gear 136. Gear 136 meshes with gear 138 which meshes with and is driven by gear 36 to which driving pulley 32 is attached. Gears 134, 136 and 138 are mounted on shafts 140, 142 and 144, respectively, all of which are suitably supported bearings in the machine frame.

Referring to Fig. l, the left end of arm 100 carries a pin or stud 146 connected by means of a pair of parallel links 148 to one arm of a |bell crank lever 150. The n other arm of bell chank lever 150 is pivotally attached by pin 151 to a yoke formed on the upper end of arm 152. The lower end of arm 152 isformed with an elongated slot 154 which is engaged by a roller 156 pivotally mounted on a crank p-in or stud 158 supported eccentrically on the front face of cam 112. A roller 159 rotatably mounted on stud 155 projecting from the center portion of arm 152, engages with a track 160 of the cam block formed integrally on one end of shaft 118 suitably mounted on bearings supported in the frame of the machine. An arm 162 (Figs. l, 3 and 5) mounted on shaft 118 carries on its free end a pin 164 engaging an elongated slot 166 formed in a bar 168 and an elongated slot 170 formed in a bar 172. Bar 168 is secured to one end of a rod 169, the other end of which is pivotally connected to an arm 174 mounted on a vertical shaft 1,76 pivotally supported in a suitable bearing bracket 178 attached to the front frame portion of the machine. Bar 172 is attached to one end of rod 173whose other end is pivotally connected to the free end of arm 180 mounted on a vertical shaft 182 also pivotally mounted in bearing bracket 178.

Stitch selector arms 184 and 186 are attached to the lower ends of vertical shafts '176 and 182, respectively 8 (Figs: l and 5). The free ends of arms 184 and 186 are provided with pointer or indicator heads 188 and 190, respectively, which engage with the front edge of an indicator plate 192 having formed thereon suitable spaced markings or calibrations which aid an operator `in setting one or both heads 188 and 190 in a selected position according to the length of stitches to be made. Each arm 184 and 186is provided with ra thumb screw 196 which coacts with a clamp shoe 198 operative `to hold its respective stitch selector arm firmly in adjusted selected position on indicator plate 192. Indicator plate 192 is attached to the bottom portion of bearing bracket 178.

Also yattached to pin 164 is a bridge member 200 which slidably engages and is yieldingly connected to one end of connecting rod 202 (Fig. 5). The other end of rod 202 engages with and is yieldingly connected to a block 204 which is pivotally attached by stud 206 to the lower end of cam lever 208. Cam lever 208 on its upper end carries a cam follower 210.

The yielding connection between rod 202 and bridge member 200 includes a collar 201 secured to rod 202 and a compression spring 203 encircling the rod with its ends bearing against the collar and a part of bridge member 200, as shown in Fig. 5. The resilient connection between rod 202 and block 204 includes a pair of spaced collars 205 pinned to rod 202 and a compression spring 207 encircling rod 202 with its ends bearing against opposed ends of collars 205. The resilient connections are similar in construction to those shown and described in Pedersen Patent 2,604,863, and further detailed dcscription thereof is deemed unnecessary to an understandi'ng of the invention, and is omitted.

Cam lever 208 at its center portion is provided with a hub 209 which is rotatably and laterally slidably supported on horizontal shaft 212 suitably mounted in the frame of the machine. Hub 209 is formed with a vertical slot 214 (Fig. 5) with which engages a pin 216 fixed to and projecting outwardly from a manually shiftable selector lever 218. This lever is pivotally mounted at its lower end on a stud 220 held `in a suitable lug in the machine frame. The upper or free end of lever 218 is provided with a manually engageable handle 222 (Fig. 2).

It will be seen that when an operator wishes to select a desired operating position for lever 218, she grasps handle 222 and moves it in one direction or the other. By moving lever 218 in this manner, cam lever 208 is shifted laterally and the operator can locate cam roller 210 in position to engage and coact with any one of three vertically arranged axially spaced cams 224, 226, or 228, v which preferably are formed integrally with cam sleeve 230. Cam sleeve 230 is adjustably clamped by means of screws 232 and plate 234 (Fig. 19) to hub 236 of a flange 238 which is provided with a plurality of concentric, radially spaced, edge cams 240, 242 and 244. Although three vertical cams and three edge cams have been selected to illustrate the invention, itis to be underv stood that more or less than three cams of each type could `be used if desired. Hub 236 is rotatably supported on stud 246 which is attached to and extends outwardly from bracket 248 secured to the machine frame. A ring gear 250 attached to flange 238 `and hub 236 meshes' with and is driven by gear 252 adjustably secured to shaft 142 which is driven continuously by gear 136.

In order to assure proper contact and alignment of the cam roller 210 with one of the three vertical cams 224, 226 and 228, which is selected by the operator for a desired stitch pattern, hand lever 218 is provided on its upper portion with a pin 254 which can be brought into engagement with one of three properly spaced holes 225, 227 or 229 (Figs. Q and 5) formed in a suitable bracket 256 attached to the machine frame. Pin 254, which ex tends outwardly from the plane of lever 218, notonly serves to assure proper alignment of'cam roller 210; with a selected cam, but also to provide means for locking the cam 1evers.208 against lateral shifting -movement during sewing operations.

The` gear-ratio .between the main drive of the machine and that of the cams V224, '226 and 228 is 2:1. Considering that two4 stitches, one over and one under stitch, represent one cycle of the machine, it is evident that one revolution of the cams on shaft 246 represents two machine cycles or four stitches. In order to create a large number and variety of attractive stitch patterns, it has beenA found that four successive stitches may produce such desired variety. `If a greater number and variety of stitch patterns were desired, the gear ratio could be tincreased accordingly.

In the illustrated embodiment of the invention, .cams 224, 226, and 228 have been so designed thatcam 224, shown in Fig. 16, produces an alternate short and long stitch; cam 226 shownin Fig. 17, produces three successive shorlt and one long stitch, and cam 228 shown in Fig. 18, produces two successive short and two successive'long stitches. It has been explained hereinabove that the angular position of track 160 in cam block 161 of shaft 118 controls the length of the stitch to be made; and that cam block 161 is rocked into different angular positions by means of vertical cams 224, 226 and 228 through cam lever 208, rod 202, bridge member 20h, and ar 162. While angular movements of cam block 161 effected by the high and low portion of :each of the cams 224, l226 and `228 are the same, the sequence in which such .movements are effected by each of vsaid `cams is different in every two cycles of the machine depending-on which cam is selected and the stitch pattern desired. kIt shouldhe understood that the distance the worker .material is advanced or -fed forward by the lower feed `foot 92 determines and represents the length of stitch.

The production of short stitches of various lengths as well as long stitches of various lengths is accomplished by the settings of the oars 168 and 172. These bals by means of their elongated slots y166 and 170, respectively, engage with pin 164 on arm 162 oscillated by one of the cams 224, 226 and 228 described above. Bars 163 and 172 can be set in such a position that pin .164 contacts and is arrested by either of the two elongated slots 166 and 170 before the full distance effected by a selected cam is reached. The above described yieldable connection of rod 202 with the cam lever 208 and the bridge member 200 compensates for any over travel caused .by a high or low portion of any of the cams 224, 226er 228. .Adjustment of eitherorboth of heads 163 and 17.2 in accordance with the desired lengthof stitches on thetop and bottom surfaces of the work and the concurrent positioning of their respective slots 166 and 170 in proper operating arrangement is effected by moving indicator heads 1&8 and 190 on arm 184 and 186, respectively. .The machine is so arranged that indicator head 190 controls the setting for the length of stitch on the under surface of material M; indicator head 183 controls the setting for the length of stitch on the top surface thereof. By moving indicator heads 18S and 199 towards each other, shorter top and bottom stitches are effected; by moving the indicator heads away from each other,longer top and bottom stitches are formed. `Separate movement of heads 188 and 19d different.V distances from'their zero positions (Fig. 5) results in thedesired lengthsof top and bottom stitches.

The machine is provided with a thread pullerrnechanism similar to that disclosed in Patent 2,368,066, and only so much as is vrequired to makeclear its construction andvoperation is described and shown herein. This mechanismzincludes a thread puller arm 260 which on its upper free end carries a thread engaging head 2162 so mounted that it may rotate around thefperiphery of 'a drum 264 (Figs. 1 and 2). The chief function of the thread;puller mechanism is to engage the loop of thread formed beneath table 110 on alternate .movements ofthe needleN,.pull nthe loose .end ofthe thread throughthe work .or material M and dispose it about the periphery of the drum 264 in such a manner that the danger .of snarling, fouling or breaking the thread is practically eliminated.

As shownin Fig. 1, there is provided in upper looper arm 261 .having a thread .engaging and supporting head 263 which engages a loop of thread .formed above work M on the downward .movement of needle N vby upper needlewbar 7.0. .Head 263 .is provided witha roller `(not shown) .on which the thread is .supported during the movement of looper arm.261.from left to right, as viewed in Fig. 1, -whenon the next .upwardmovement of lower needle bar :7.2, thread engaging head 262cm thread puller arm v260 engages the'loop of thread formedbeneath the workandpulls the looseend of threadover the rolleron head 263 and through Athe work in Aits .operation of disposing the threadon .drum .264. The construction and operation of .upper looper arm261 is essentially the same as that disclosed in .Patent.2,3.86,8'00 and further showing anddescription thereof is deemed unnecessary.

Thread puller arm .26.0 .is mounted on shaft 266 .supported by a suitablebearing bracket268 secured to the framework ofthe machine. Shaft 266 is rotated by means of a cam lever270 mounted thereon and carrying on its free end acam roller..272 .engaging witha suitable cam track 274 mounted .on the face of continuously driven gear 128.

Stitching headHisprovided with vertical .reoiprocatory rods 276Y and 278 which yare responsible .for the movement of .dual presser vfoot Saad .upperfeed or followerfoot 90, respectively, Vto vand `'from operative position relative to work.M on table .110. .The .construction and operation of rods 276 and 27S are similar to those disclosed inPatent 2,386,800.

Dual presser foot.88 comprises a foot portion 280xe'd to the lower end of vertical rod 278, and a foot portion 282 secured to the lower or free end of a suitably shaped arm 284. This arm, in the illustrated embodiment, has a forked headend pivotally mounted on astud 286 held by a lug 28S attached to vertical rod 278 (Figs. 7 and 9). Arm284 also carries a stud 290 to which is connected one end of alink 292. The other vend of link 292 is attached to lever 294 (Fig. 3) loosely mounted on stud 296xed ina bracket 298 secured to the machine frame.

The lowerfree end of lever 294 is pivotally connected toene end of link 302. The other end of link 302 is pivotally attached Vto oneside of an H-shaped arm 306 (Fig. 3) loosely supported by a pair of vpins or studs 308 inbracket 310.attached to the machine frame. {On its .other end, link 302.is provided with an extension lug 312 to-which is secured .a bar 314. The free end of bar.314 supports throatplateltl (Figs. 3 and 5). `Also attached to link .302 is a vertical bar .316 (Figs. f3, 44 and 5) which engages with a hook-shaped linger on a cam lever 320 loosely mounted on vertical cam shaft 322 and formed with'a forked shaped hub adapted to engage with a collar secured to Vertical shaft 322. The latter is slidably supported in a suitable bearing lug `326 projecting from bracket 248 and a suitable bearing in bracket. 256. 1

The top end portion of vertical shaft 322 is provided with a pin 32d projecting therefrom. yThe .free endof pin 323 is provided with a knob 330 .by means of which the operator can raiseor lower vertical shaft 322 inits supporting bearings. Thisrnovement of shaft 322, as described,.is made possibleby the provision ,of a vertical slot 332' formedin thebearing of bracket 256 '(Fig.'2)', which slot accommodates lpin 328 as it is moved up `or down therein. .S1ot..332 is formed with three vertically and equally.spaced..horizontalnotches 334, 336 and 338. Thesenotches allow theoperator to engage and locate pin..328 .in .a selected notch therebyvpositioning cam follower 32.1 on cam lever 320 for coaction withra selected cam of horizontal cams240, 242.and 244 onflange1238. These cams are employed for .the purpose `of` effecting 9 lateral displacement of the work in accordance with -a predetermined repetitive stitching pattern sequence. 'Ihe high and low portions of each cam are constructed and arranged to cause a different repetitive stitch sequence of displacement during the machine or four stitches, two under and two over stitches.

When the operator moves knob 330 so as to cause pin 328 to come to rest in the bottom of vertical slot 332, cam follower 321 will engage a straight annular face 340 (Figs. 19 and 20), and cam lever 328 will remain motionless, and no displacement of material M will take place.

In order to make certain that pin 328 will remain in a selected notch 334, 336 or 338, shaft 322 encircling its lower end, is provided with a suitable torque spring 342 (Fig. l) which normally biases pin 328 into the slot and retains it in locked in position.

As shown in the drawings, it is evident that when cam follower 321 rolls onto a low portion of one of the cams 240, `242 or 244, arm 284' through the linkage described hereinabove, is moved outwardly on pivot 286. Since presser foot portion 282 is attached to the lower end of arm 284, it is also moved outwardly or displaced laterally from the position shown in Fig. ll to that shown in Figs. 12 and 13. g

In Fig. l1, it will be seen that normally presser foot portion 282 is located adjacent upper feed foot 90. Thus any'lateral movement of presser foot portion 282 results' in a similar movement of feed foot 90 (Fig. l2). In order to obtain this lateral movement, upper feed foot 90 is attached to the lower free end of a suitably shaped arm 344, the upper end of which is secured to pin 346` mounted in a forked lug 348 adjustably secured to vertical actuating rod 2'76 (Figs. 7 and 8).

The lower end of arm 344 carries a stud 350 extending through a slot 352 of a guide and aligning lug 354 fixed to the lower end of vertical reciprocating rod 276. Compression spring 356 encircling stud 350 and having its'ends bearing against nut 358 and lug 354 normally maintains upper feed foot 90 in vertical position. When, however, upper feed foot 90 is displaced laterally, by presserfoot portion 282, as just described, spring 356 is operative to return it to its normal position.

Since it is desirable to grip the work or material M firmly when it is displaced by the upper feed foot 90 and lower feed dog or foot 92, the latter is moved laterallyat the same'time and by the same mechanism that moves presser foot portion 282 and upper feed foot 90. The lateral movement of these parts can be a right angular-movement or a compound lateral and forward movement consti-tuting asubstantially diagonal path of travel depending upon which of the vertical and horizontal cam combinations is selected to produce the desired repetitive sequence stitching pattern.

'I'his operation is eifected by H-shaped arm 306 which is connected by adjustable connecting rod 360 to lug 362 adjustably attached to rod 96 which is integral with lower feed foot carrier bar 94. It will be recalled that rod 96 is slidably supported in hub 98 of arm 100. In this way, lower feed foot 92 is mounted for movement in two directions at right angles one to the other. That is lit can be moved back and forth as well as sideways. In order to prevent undue friction and make possible asmooth sidewise motion, a roller 364 is provided for supporting the front end of carrier bar 94 (Figs. 7 and 8). 'Roller 364 is loosely mounted on lug 3,68forming a part of arm 100.

As described' hereinabove, the displacement of upper feed foot 98 and lower feed foot or dog 92, as well as presser foot portion 282 and throat plate 108, is etfected by cams 248, 242 and 2,44' through cam lever 320 and associated linkages. Cam follower 321 on cam lever 320 is maintained in contact with any of the selected cams 240, 242' and 244 by means of tension spring 370 stud 366 held by the course of every two cycles of forming the stitches which extend in (Figs. 3, 4,v and `5) having one end 'attached to stud' 366 on link 302 and its other end anchored to a post 372 mounted in a suitable lug on the machine frame. Y

When cam follower 321 moves oit a high spot of the selected cam with which it coacts to a low spot thereon, a displacement action of the work displacing'mechanism occurs. Since the distance between the high and low spots or portions of a selected cam of any of the cams 240, 242 and 244 is the same for all cams, the amount of lateral displacement of the Work in response to this operation is the same regardless of which of rthe three cams 240, 242, or 244 cam roller 321 is engaged. However, since it is possible to obtain a greater variety of,

other, that the lateral displacement of the work may be.

made less than it would have been if cam follower 321 were permitted to reach the bottom of a low spot on any of the selected cams 240, 242 or 244 with which it is engaged. Therefore, the extent of movement of the displacing mechanism may be regulated by screw 376 from a maidmum of the full throw provided by each low spot on one of the cams 240, 242 and 244 to a minimum as desired by the operator.

In order to provide means for insuring that thewvork; will at all times be fed properly with respect to the path* of movement of needle N, there is provided a detachably' mounted, suitably shaped material guide nger 380 (Fig ..l 23) pivotally supported on a stud 382 in bracketl 384. The latter is adjustably and detachably secured by screw, 386 to work supporting table 110.

urged ball lock or detent 388. When it is desired to move finger 380 out of operative position, the operator merely'A grasps it and pulls it towards her and in so doing, the lockv connection is broken. Presser foot 280 is provided with a cut-out 390 adapted to accommodate the end of guide linger 380 and -in this manner allows guide linger 380 to be located closely adjacent the presser nger mechanism.y

fected by providing a cut-out 392 such as shown in the:

modified form of throat plate 394 illustrated in F-ig. 22.' It will be noted that this throat spaced needle holes 395 and 397 obstructed movement of needle N at all times during the formation of straight line and also lateral stitches..

With the banks of cams shown in Fig. 19, many different' selected repetitive type of stitch patterns can be formed. Fig. 21 for purposes of illustration shows several types of repetitive stitch patterns which can be formed. In the last stitch pattern shown in this ligure, the mach-ine forms a stitch which is commonly known in the glove trade as a Creed stitch. In the formation of this stitch, selected cams of each bank of vert-ical and edge cams are used. The motions imparted by selected cams 228 and 240 of these banks of cams impar-ts not only a forward or straight line path of movement to the work, but also a diagonal movement by means described hereinaboveso that in a straight line path of movement, cam 228 is responsible for this movement,v

and the diagonal or lateral stitch is effected by cam 240.

The exact sequential operat-ion of other combinations of est of brevity. p

A sewing machine of the type described equipped with.:

Guide finger 380 is; maintained in operative position on bracket 384, as shown -in Fig. 23, by means of a conventional type of springy plate has two laterally'` which provide for un-- apar-,ssn

l 1 the. cams .and coacting mechanisms which result in vthe .types ofselected stitch patterns, makes possible the formation of .stitches'which not only have a highly pleasing decorative effect, but also stitches which are utilitarian in ,purpose and function.

. What I claim is:

1. The mechanical method of forming a succession of over .and under stitches, and lateral stitches in accordance. with a desired repetitive stitching pattern, comprising feeding Work to be stitched over a support surface into and out of the path of .a needle, moving a double pointed needle having an eye located between its points and thread having a loose end back and forth .through said work to form a straight line series of one or more over and under stitches, then gripping said work adjacent the path of travel of said needle and moving said work laterally to dispose it Afor the next movement of said needle therethrough ina line parallel to but spaced laterally from the line of .over and under stitches, again gripping said work and moving -it in the reverse direction laterally to dispose it in the path of said needle and in line with said line of over and under stitches, and pulling the Aloose end of said thread through said work .on each alternate Ymovement of said needle.

2. The mechanical method of forming a .succession of over ,and under stitches, and lateral .stitchesin accordance with a desired repetitive stitching pattern, comprising feeding work to he stitched Vover a support .surface into and out of the path of a needle, moving a-double pointed needle having an .eye .located between its points and threaded .with -a thread having a loose end bach and for-th throughsaid work to form a straight line series of one or more overv and under stitches, gripping `the work adjacent the 1path .of .movement of said needle after the formation of said one or more over and under stitches and laterally displacing said gripped work to position it for movement of said needle therethrough in a path of travel lying along a line parallel to the line of over and under stitches, and shiftingsaid work back and forth relative to said lneedle in forming each stitching sequence of said repetitive stitching pattern.

3. The mechanical .method of forming la succession of over. and under stitches, and lateral stitches in accordance with a desired Arepetitive stitching pattern, comprising feeding work to be stitched over a support surface into and .out of the path of a needle, moving a double pointed neddle having an eye located between its points and threaded .with a thread having a loose end back and forth through said work to .form a straight line series of one or moreover and under stitches, gripping said work adjacent the path of `movement of said .needle after the formation of xsaid, one or more over and under stitches and laterally displacing said gripped work .to position it for movement of said needle therethrough at a .point located at one side o'f the line of stitches first-named', pulling the loose endof said thread through the work on each alternate movement of said needle through said work, and selectively shifting said work relative to said needle in forming each stitching sequence of said repetitive stitching pattern.

4. The mechanical'method of forming a succession of over and under stitches, and lateral stitches in accordance with a desired repetitive stitching pattern, comprising feeding Work .to be stitched over a support surface into a'nd out of the path of a needle, moving a double pointed needle having an eye located between its points and threaded with a thread having a loose end back and forth throughsaid work to form a straight line series of one or more over and under stitches, gripping said work ad jacent the .path .of movement of said needle after the formation .of said one or more over and under stitches and substantially simultaneously laterally .and forwardly d-isplacing said gripped work to position it for movement of said needle therethrough at a point located atL one side ot said straight line series of stitches, pulling the loose .end of :said thread .through .the work on Yeach alternate movementy of said needlerthrough said work, andselectively shifting said work relative to said needle in forming each"A quences, comprising feeding said 'work along a guide and.

over Va work supporting surface into and outof the path of travel of a double pointed needle hav-ing an eye between its ends and threaded with a thread having a loose end, forming one or more over .and under stitches according to a sequence of said stitching pattern, then gripping ysaid work after the last over and under stitch of said sequence is completed and moving .it laterally relative to said guidey and ythe path of travel of said needle to dispose it so that on` the next movement of said needle therethrough, said needle may move therethrough at a point laterally spaced from the line of stitching formed by said over` and under stitches, and pulling the loose end of said thread through said work on the completion of each stitch.

6. The mechanical method of forming a succession of lateral stitches in work being stitched comprising feeding said wonlt past a guide over a work support into the path of .movement of a double pointed needle having an leye between its ends land threaded with `a thread having a loose end, gripping said work adjacent the path of travel of said needle, .passing said needle and `thread through said work, moving said gripped work forwardly and `.sub-K stantially simultaneously, also moving said work laterally,

and then passing said .needle through said work in the opposite direction to form a lateral stitch therein, and

pulling the loose end of said thread through said work on alternate movements of `said needle.

7. The mechanical .method of forming .a succession of one or moreover and under stitches and lateral .stitches in accordance with a desired repetitive stitching pattern closely simulating hand .stitching comprising .feeding work to he stitched over a work support into .the path of travel of a double pointed needle having an eye between Aits ends threaded with a thread having a loose end, and forming `one 4or more over Vand under stitches .according to said pattern sequence, then .gripping the work after the final over and under stitch of each repetitive sequence has been .completed andmoving said work laterally so as to locate .it .for the passage of said needle therethrough in -a line parallel to the line of over and under stitches, andpulling .theloose end .of said thread through said work aiter alternate .movements of .said needle.

' .8. ln a sewing machine, the combination with a double.

pointed needle and means .for projecting the entire needle and .a thread back and .forth through work to be stitched to simulate hand stitching, of means for feeding said work into and out .of .the path of travel of said needley along .a straight line path of `travel to `form over Vand under stitches, and mechanism for selectively gripping opposite faces of selected portions of said work, and

displacing said work laterally out yoi said straight line path of 4travel of said work relative to said needle, whereby said needle on its next complete .movement disposessaid thread laterally in said work.

.9.. The .invention deined in claim 8, wherein said cent the path of travel of said needle .to displace said.

work laterally .relative to .the normal straight line path of movement of said work.

l0. ,In .a sewing machine, the combination with alternately operating opposed needle bars, of a .double pointed needle having an eye formed between its points and a length of thread threaded through said eye, -means for' alternately connecting .said needle with said bars for projection Aof the entire needle threaded with `said thread through rworlcto be sev/ed, feeding means yfor normally work support,

i support table over which said work 13 moving said work along a straight line path of movement into the path of travel of said needle, and mechanism including means engaging opposite faces of selected limited portions of said work `and cam means operative in accordance with a desired stitching pattern for positively holding and displacing said work laterally out of said normal path of travel to a selected stitching position and for holding said displaced work at said position during the next movement of said needle completely through v said displaced work to `form a lateral stitch therein.

11. In a short thread sewing machine, a pair'of alternately operating needle bars, a double pointed needle, means for alternately connecting said needle with said bars .to project the entire needle threaded with a thread having `a loose end back and forth through the Work, means coacting with one of said bars .for tensioning the thread, a drum, a thread puller operating while said thread is tensioned for pulling the loose end thereof through said Work and disposing it on said drum, a work displacing unit movably mounted adjacent said needle for engaging opposite faces of said work .and displacing said work laterally out of the path of said needle, a movable throat plate, and means for simultaneously moving said unit and said throat plate to displace said work and locate selected portions .thereof in predetermined positions for the formation of lateral stitches therein.

12. Ihe invention defined in claim 11 including a plurality of radially spaced cams, a cam lever, a cam follower on said lever adapted to coact with a selected o ne of said cams, each of said cams being operative to effect a lateral shifting of said work in accordance with a predetermined stitching pattern sequence, and means for effecting relative movement between said lever and a selected one of said cams .to dispose said cam follower in position to engage said selected cam land effect the formation of a selected stitch pattern.

13. In .a sewing machine of the class described, the combination with a pair of opposed alternately operating needle bars, a double pointed needle, a work support, work guide means adjustably mounted .on said support, means for feeding work along said guide means on said of means alternately connecting said needle with each bar for projection of the entire needle threaded with a thread having ,a loose end through said work, a drum located adjacent said support, a thread puller movable about .the periphery of said drum for pulling the lfree end of said threadthrough said work and disposing it about said drum, mechanism normally operative to feed said work along said guide means in a straight line path of movement, mechanism for gripping and moving said work laterally out of said normal path of travel, and selective control means for effecting sequential operations of said mechanisms to produce a desiretil repetitive stitching pattern stitch sequence in said wor 14. The machine defined in claim 13 wherein said vfirstnamed mechanism comprises a first bank of cams, and said second-named mechanism comprises a second bank of cams, means operatively engaging a selected cam of each .of said banks of cams, and manually operated means for selecting a cam on each of said banks to control the resulting movements of said work in a straightrline path of movement and laterally relative thereto in accordance with the stitching pattern prescribed by said selected cams.

15. The invention defined in claim 9 including a work is fed, a throat plate provided with a slot, and wherein said work feeding means includes a feed dog located beneath said work support table having a work engaging surface movable upwardly through said slot into engagement with the under surface of said work, and wherein said work displacing mechanism includes means for moving said throat plate and said feed dog sidewise relative to a normal straight line movement of said work into and out of the range of operation of said needle.

' 16. 'In a'sewing machine, the combination with a doti ble pointed needle and means for projecting the entire needle and a thread back and forth through work to be stitched, of means for feeding said work into and out of the path of travel of said needle along a straight line path of travel to form over and under stitches, and mechanism for forming a plurality of types of repetitive stitching pattern sequences in said work as it is -fed along a straight line path of -travel to and from said needle, in# cluding a plurality of operating means, and means for selecting one of said operating means for forming a selected type of stitching pattern.

17. 'The invention defined in claim 16 wherein said mechanism includes opposed work gripping and shifting members, and means operating in timed relationship with the movement of said needle projecting means for moving said members into and out of engagement with said work adjacent the path of travel of said needle to feed said work in accordance with the stitching pattern p-rescribed by said selected operating means.

18. The invention defined in claim 16 including mechanism for controlling the length of said stitches, com. prising an oscillatable shaft, a control device for said work feeding means on said shaft, a lever attached to said shaft, an operating link connected to said lever, a cam actuated link attached to said lever, a cam actuated lever secured to one end of said link, a cam follower on said lever, an elongated pin mounted on the free end of said first-named lever, an adjusting rod having a slot through which said pin extends, a second adjusting rod having a slot through which said pin also extends, means for adjusting the position of said slots in said rods relative to said pin-to control the limits of oscillation of said control device, and wherein said plurality of operating means includes a plurality of axially spaced cams', and means for effecting relative movement between said cam `follower andl a selected cam for effecting the de-i sired movement of said work feeding means.

19. In a sewing machine, the combination with a dou-v ble pointed needle and means for projecting the entire needle and a thread back and forth through work to be stitched, of mechanism for feeding said work into-and out of the path of travel of said needle, said mechanism including means for gripping opposite surfaces of selected portions of said work adjacent said path of travel of said needle and selectively moving said work with a straight line path of movement, laterally or with a com pound movement relative to said needle, said needle being operative in response to its projection back and forth through said work and the movement of said work relative to the path of travel of said needle to form in said work a plurality of .repetitive stitch sequences in accord-` ance with a predetermined stitching pattern. r

20. In a sewing machine, the combination with a dou ble pointed needle and means for projecting the entire needle and a thread back and forth through work to be stitched, of means Ifor feeding said work into and out of the path of travel of said needle along a straight line path of travel to form over and under stitches, mechanism'- for selectively gripping opposite surfaces of said work and displacing said work laterally out of said straight line path of travel of said work relative to said needle, whereby said needle on its next complete movement dis# poses said thread laterally in said work, and means 'for controlling the frequency of operation of said mechanism in accordance with a selected repetitive stitching pattern.

2l. In a sewing machine of the class described, the combination with a pair of opposed alternately operating needle bars, a double pointed needle, a work support, work guide means adjustably mounted on said support; means for feeding work along said guide means on said work support, of means alternately connecting said needle' with each bar for projection of the entire needle threaded with a thread having a loose end back and forth through said vwork and vdispose each stitch formed ilat against;

normally operative to feed said work along said guide means in a straight line path of movement in accordance with a predetermined stitching pattern, mechanism for moving said work laterally out of said normal path of travel in accordance with said stitching pattern, and selective means for controlling the frequency of operations of said mechanisms to ivary the angular disposition f stitches disposed fiat against the surfaces of said work in accordance `with said repetitive stitching pattern.

2 2. In a short thread sewing machine, a pair of alternately operating needle bars, a douhle pointed needle, means for -alternately connecting said needle with said hars -to project the entire needle threaded with a thread having a loose end back and forth through the Work, means coacting with one of said bars for tensioning the thread, a drum, a thread puller operating while said thread is tensioned for pulling the loose end thereof through said work and disposing it on said drum, a Work displacing unit including a work feeding dog operative to engage the under surface of said work and an upper feed foot movahly mounted adjacent said needle for feeding and also displacing said work laterally out of the path of said needle, a movable throat plate having a slot accommodating said work feeding dog and two llaterally spaced needle holes, and means for simultaneously moving said upper ,feed foot, said dog and said throat plate to displace said work and locate selected portions thereon in predetermined positions for the passage of said needle through one of said needle holes.

A23. `Sewing machine lpresser foot mechanism comprising a supporting surface and work feeding means for feeding work over said surface, a rst presser foot, support means mounting said first presser foot for movement into and out -of engagement Vwith the upper surface of work to be stitched being fed yhy said work feeding means into and .out of the path of a needle, a second presser foot coacting with said iirst presser foot, means mounting said second presser foot-for movement into and out of engagement with said Work, and forindtpendent lateral movement relative to said first presser foot, said work feeding means including means co-acting with said second presser foot during the lateral movement thereof to displace work engaged thereby laterally out of its path of movement to and from said needle.

-24. The mechanism defined in claim 23 including means mounting said second presser foot on said support means, means for raising said first presser foot out of engagement with said work, and means operative when said first presser foot is raised for moving said second presser foot and said co-acting means laterally relative to the path of feed of said work to said needle.

`25. The -mechanism defined in claim 23 including an upper feed foot and a lower feed means coacting with said presser feet, kand means operative in response to the lateral movement of said second presser foot for effecting concurrent lateral movement of said upper feed foot.

,26. Work handling .and feeding mechanism for a sewing machine comprising `an upper presser foot, operating means for said presser foot, an upper feed foot, a lower feed means, means for moving said feed kfoot and said feed 4means into co-acfing feeding relationship with work being fed along a Worlt support table, operating means for moving said presser foot into and out of engagement with said wor-lg, and means operative while said presser foot is out of engagement with said work for moving said feed foot and said feed means laterally relative to said presser foot to displace said wor-lt sidewise ou said work support table.

27. Work handling and feeding mechanism for a sewing :machine Acomprising `a first upper presser foot and asecond upper presser :foot coacting therewith,l a common reciprocating support for said presser feet and operating means for moving said presser feet into and out of operative engagement with Work 'being fed over a work support table to and from a reciprocatory needle, an upper -feed foot and lower work feeding means coacting with said presser feet, support means mounting said feed foot and said Work feeding means for movement into and out of feeding engagement with said work, operating means for said feed foot and said work feeding means, zsaid first upper presser foot and said feed foot and work feeding means, operating means being operative normally to maintain said work `on said work support table and effect the straight line feeding movement thereof over said table, and means for moving said second upper presser foot and said feed foot and said work feeding means laterally relative to the normal path of movement of said work to displace said work sidewise on said Work vsupport table.

28. The mechanism defined in claim 27 including selective devices for controlling the actuation of said operating means to effect the normal straight line feed of work over said support table and the lateral displacement thereof in accordance with a predetermined repetitive stitching pattern.

29. Sewing machine `presser foot mechanism provided with a first presser foot, support means mounting said first presser foot for normal operative movement in a substantially vertical plane into and out of engagement with the upper surface of work to be stitched being fed into and out of the path of a needle, a second presser foot coacting with said first presser foot, means mounting said second presser foot for normal operative movement in a substantially vertical plane into and out of engagement with said Work, and for independent lateral movement relative to said plane of movement, means mounting said second presser foot on said support means, means for raising said first presser foot out of engagement with said work, means operative when said first presser foot is raised for moving said second presser foot laterally relative to its normal plane of movement, means co-acting with said second presser foot during the lateral movement thereof to displace work engaged thereby laterally out of its normal path of movement to and from said needle, and selective devices for controlling the frequency of operation of said last-named means in accordance with a preselected repetitive stitching pattern.

30. The mechanismfdened in claim 29 including an upper feed foot coacting with said presser feet, a lower feed foot coacting with said upper feed foot means operative in response to the lateral movement of said second presser foot for effecting concurrent lateral movement of said upper feed foot and said lower feed foot, "and 'means for returning said second presser foot and said feed feet to' their normal operative positions.

V3i. The mechanism defined in claim 27 wherein said lower work feeding means includes a work feeding dog, means mounting said dog for normal operation in a substantially vertical plane of movement into and out of feeding engagement with the under side of Work to be fed over said tahle, a throat plate movably mounted in said table and provided with a slot accommodating said dog, and means operating substantially concurrently with the means for moving said upper presser foot for moving said throat plate and said feed dog laterally to shift said work on said table laterally for the next movement of the needle therethrough at a point laterally spaced from a normal straight line sequence of stitches.

32. ln a short thread sewing machine, a pair of alter- :nately .operating needle bars, a double pointed needle, means for alternately connecting said needle with said hars to'project the entire needle threaded with a thread having a loose end back and forth through the work, means coacting with one of said bars -for tensioning the thread, a drum, a thread puller operating while said fthread is tensioned for pulling the loose end thereof r17 through said work and disposing it on said drum, a `work displacing unit including a work feeding dog operative to engage the under surface of said work and an upper feed foot movably mounted adjacent said needle for feeding and also displacing said work laterally out of the path of said needle, a movable throat plate having a slotv accommodating said work feeding dog, means for simultaneously moving said upper feed foot, said dog and said throat plate to displace said work and locate selected portions thereon in predetermined positions for the passage of said needle through said slot, said last-named means comprising a plurality of selective cams, a first and a second cam lever, a cam follower on each of said cams, means for effecting relative movement between one of said cams and said cam follower on said first cam lever, means for effecting relative movement between another of said cams and said cam follower on said second lever, and means for rotating said cams.

33. The mechanism defined in claim 26, wherein said last-named means comprises a cam lever having acam follower, cam means adapted to be engaged by said cam follower, a rotating shaft supporting said cam means, a pivotal mount for said presser foot, an operating lever, a link connecting said presser foot and said operating lever, a spring-means operative in response to the rota- -tion of said cam means for rocking said operating lever to move said presser foot laterally, and means operative in response to the continued rotation of said cam means for returning said presser foot to its original position.

34. The mechanism deiined in claim 29, wherein said selective devices include a plurality of axially spaced cams, a rst displacable cam lever having a cam follower operatively engageable with a selected cam of said axially spaced cams, a plurality o f concentric radially spaced cams, a second displaceable cam lever having a cam follower operatively engageable with a selected cam of said concentric cams, manually operated means for effecting relative movement between said concentric cams and said cam followers to locate said -levers in selected operating positions, and means for securing said lastnamed means in said selected operating positions.

35. The sewing machine defined in claim 13 wherein said mechanisms include a compound cam unit, said cam unit having one bank of axially spaced cams, and a second bank of concentric radially spaced cams, and manually operable means for each of said banks of cams for selectively effecting the operation of a selected cam of said banks of cams to produce said selected repetitive stitch pattern.

36. Work handling and feeding lapparatus for a sewing machine comprising an upper presser foot, an upper feed foot, a lower feed dog, means mounting said upper feed foot and said lower feed dog for normal longitudinal movement in a straight line path of movement, or for lateral movement, or combined longitudinal yand lateral movement, a movable throat plate provided with a slot accommodating said feed dog on its upward and feeding stroke, and mechanism for operating said upper feed foot and said feed dog in their normal path of movement and selective means for interrupting the operation of said upper feed foot and feed dog and moving said feed foot, and said dog and throat plate with a lateral or compound longitudinal-lateral movement, said mechanism including a plurality of groups of cams, and operating means for said upper feed foot and said feed dog selectively engageable with selected cams of said groups of cams for imparting the desired movement to said upper feed foot and said feed dog.

37. The apparatus defined in claim 36 wherein said operating means for said feed foot, feed dog and throat plate include an adjustable cam lever provided with a cam follower engageable with a selected cam of one of said groups of cams, an operating finger on the free end of said cam lever, a shifting member engaged by said finger, a lever connected to said shifting member, means ".18 for moving said shifting member to move said feed foot, said dog and said throat plate and rocking said lever, and adjustable means on said lever to limit the extent of movement of said feed foot, feed dog and throat plate.

38. A presser foot for a sewing machine comprising a first substantially vertically reciprocating rod, a first presser foot member mounted on said rod, a bracket attached to said rod, a second presser foot member pivotally mounted on said bracket, a second substantially vertically movable rod, a work feed foot pivotally mounted on said rod, means coacting with said work feed foot for moving work beneath said presser feet, means normally maintaining said presser foot members, said work feed foot and said last-named means'in operative relationship for permitting work to be moved over a work supporting surface in a straight line path of movement, means for raising said rod to lift both of said presser foot members, and means for moving said second presser foot member laterally relative to said first presser foot member-,to engage and move said work feed foot and said first named means laterally whereby work engaged by said feed foot and saidirst-named means is displaced laterally on said work supporting surface. l

39. The invention defined in claim 38, including a cam actuated, lever, a link connecting said lever to said second presser foot member, and means on said lever for controlling the extent of movement of said second presser foot member. Y y

40. In a sewing machine, the combination with alternately operating opposed needle bars, a double pointed needle having an eye formed between its points and a length of thread threaded through said eye, means for alternately connecting said needle with said bars for projection with said threadthrough work to be sewed, feeding means for normally moving said work along a straight line path of movement into the path of travel of said needle, and mechanism including cam means operative in accordance with a desired stitching pattern for displacing said work laterally out of said normal path of travel to a selected stitching position and for holding said displaced work at said position during the next movement of said needle through said displaced work to form a lateral stitch therein, said mechanism further including a dual presser foot and an upper feed foot, means for engaging said presser foot and said upper feed foot with the upper surface of said work, a work feeding dog operative to engage the under side of said work, and coact with said upper feed foot and said dual presser foot and move said work past said needle, and means for moving said upper feed foot and said work feeding dog laterally to shift said work out of said normal path of movement of said work to said needle. V

`41. In a sewing machine, the combination with alternately operating opposed needle bars, of a double pointed needle having an eye formed between its points and a length of thread threaded through said eye, means for alternately connecting said needle with said bars for projection with said thread through work to be sewed, feeding means for normally moving said work along a straight line path of movement into the path of travel of said needle, yand mechanism including cam means operative in accordance with a desired stitching pattern for displacing said work laterally out of said normal path of travel to a selected stitching position and for holding said displaced work at said position during the next movement of said needle through said displaced work to form a lateral stitch therein, said mechanism further including a dual presser foot and an upper feed foot, means for engaging said presser foot and said upper feed foot with the upper surface of said work, a work feeding dog operative to engage the'under side of sa'd work, and coact vwith said upper feed foot and said dual presser foot and move said work past said needle, a throat plate having a slot accommodating said feed dog for movement therein, and means for moving said upper feed foot and said work i-feeding dog laterally'to shiftsaid work out of said normal comprising a lower feed dog,"means mounting said'dog `[for normal movement in a Vsubstantially vertical plane into fand out of 'engagepm'entwith work'to be fed over a work s'nppo'rt tableto and from a'reciprocat'ory needle, operating means for'moving said dog along'its normal path of travel vinto `and'out ofr feeding engagement'with said work," support means mounting said dog for movement laterally relative to said normal path of movement,'and selectively actuated operating means for interrupting the normal ltravel of said dog and for moving said dog laterally on said supportmeans to shift said work laterally and dispose laterally spaced points thereof for passage of said needle therethrough, said first named operating means including a bank of spaced earns, and said second named vvoperating means including a second bank of spaced cams, 'and'manually operable means for selecting combinations of cams'ot said banks of cams to control the operation of fai'd operating means in accordance witha selected repetitive -"stitching patte 43. The mechanism defined in claim 42 whereinrsaid manually operable`V means "includes a' trst" pivotally mounted cam lever having a 'cam' follower for engaging a s'elected'carn of said first bank of cams, a'handle on the' free end'of said lirstcam lever, a piu projecting outwardly Afrom said lever, a member having a plurality of `laterally spaced openings for accommodating said pin when said handleis grasped by the operator and moved to position said lirst lever with its cam follower in position to engage said selected cam of said irst-named bank of cams, a second pivotally mounted cam lever having Va'carn follower, an axially movable shift supporting said -second cam lever, a bearing having a slot s'l-idably supporting said shaft and a plurality of vertically spaced notches corresponding to the positions of cams of said vsecond bank of cams, and manual means on said'shaft whereby said shaft may be raised or lowered to engage 4[20 a' selected cam with saidfn follower on said second levm asewing' machine, the combination with a-needle and meansfor" prjecting'said needle and a thread back "and -for'th'throughworkto be stitched, of means for feeding' sfaid 'workV into and out ofthe path of travel of said `needle"along"a'straight line path of'travel to form over and nde'r stitches, and vineclztan'isrn for forming a plurlity" oftypes of rep'etitiVestitChingpattern sequences in"`saidwork as said lvv'ork'is fed longitudinally to and from said needle, and means for controlling the frequency of' longitudinal movement of' said work relative to (said needle in accordance with a predetermined stitching pattern, said last-named Vmechanism and means includvin'ga plurality of selective cam means, a'pivot'allymounted cam lever, al camv follower on'said cam lever, a member having a plurality of locating openings, each corresponding to the operating'positiion of one of said cams, manual means for shifting said cam lever to a selected operating position lopening` and vmeans on said lever engaging said selected ripeningV 'fr locking lsaid leverin said selected position, whereby said cam'follower engages said selected cam.

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